The BC-5000-2 is a dedicated battery charger for the WM-5225 and WM-5265 Wireless Microphones, WM-5325 Wireless Transmitter, and WT-5100 Portable Receiver, which work with AD-5000-2. It employs a quick charging system for nickel metal hydride (Ni-MH) batteries, allowing up to 2 wireless microphones to be fully charged within 3 hours.